Method convert_op_with_tmp_reg

winch/codegen/src/codegen/context.rs:523–540

Prepares arguments for emitting a convert operation with a temporary register.

(
        &mut self,
        masm: &mut M,
        dst_ty: WasmValType,
        tmp_reg_class: RegClass,
        emit: F,
    )

    /// Prepares arguments for emitting a convert operation with a temporary
    /// register.
    pub fn convert_op_with_tmp_reg<F, M>(
        &mut self,
        masm: &mut M,
        dst_ty: WasmValType,
        tmp_reg_class: RegClass,
        emit: F,
    ) -> Result<()>
    where
        F: FnOnce(&mut M, Reg, Reg, Reg, OperandSize) -> Result<()>,
        M: MacroAssembler,
    {
        let tmp_gpr = self.reg_for_class(tmp_reg_class, masm)?;
        self.convert_op(masm, dst_ty, |masm, dst, src, dst_size| {
            emit(masm, dst, src, tmp_gpr, dst_size)
        })?;
        self.free_reg(tmp_gpr);
        Ok(())
    }

    /// Prepares arguments for emitting an extract lane operation.
    pub fn extract_lane_op<F, M>(